Used in peptide synthesis as a chiral building block for the preparation of complex bioactive molecules. Its protected amine groups allow selective deprotection and coupling, making it valuable in the development of pharmaceuticals and enzyme inhibitors. Commonly employed in solid-phase and solution-phase synthesis due to high stereochemical purity, which helps maintain the desired configuration in final peptide products. Also utilized in the construction of peptidomimetics and other nitrogen-containing compounds where precise spatial orientation is critical for biological activity.